PLANNING OF SOIL-PORE WATER SAMPLING CAMPAIGNS USING PESTICIDE TRANSPORT MODELING

被引：7

作者：

BANTON, O

LAFRANCE, P

MARTEL, R

VILLENEUVE, JP

机构：

[1] National Institute for Water Sciences Research, Inrs-Eau, Université du Québec, Sainte-Foy, Quebec

[2] Université de Montpellier, Universités de la Reunion, Université du Québec

来源：

GROUND WATER MONITORING AND REMEDIATION | 1992年 / 12卷 / 03期

关键词：

D O I：

10.1111/j.1745-6592.1992.tb00060.x

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Soil-pore water sampling by suction lysimeters monitors the fate of soil contaminants as a function of depth and time. However, sampling campaigns must be planned to most effectively monitor the migration of contaminants with a minimum expenditure of resources. The vertical migration of pesticides was studied at two sites treated with systemic s-triazine herbicides and equipped with suction lysimeters. The measured concentrations were compared with those calculated by a simulation model. This modeling was based on the processes that control the transport and fate of pesticide within the soil. The usefulness of such a tool was demonstrated by the good approximation obtained for pesticide concentrations and arrival times. Moreover, the significant spatial variability of concentrations observed justifies the use of a stochastic approach in modeling that takes into account the spatial variability of soil parameters. Also, the rapid transformation of herbicides observed in unsaturated soil zones demonstrates the importance of taking into account the sum of the toxic residues when evaluating the fate of s-triazines in soil.

引用

页码：195 / 202

页数：8

共 19 条

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